<template>
  <div class="upload-file">
<!--    <el-upload-->
<!--      multiple-->
<!--      :action="uploadFileUrl"-->
<!--      :before-upload="handleBeforeUpload"-->
<!--      :file-list="fileList"-->
<!--      :data="uploadData"-->
<!--      :limit="limit"-->
<!--      :on-error="handleUploadError"-->
<!--      :on-exceed="handleExceed"-->
<!--      :on-success="handleUploadSuccess"-->
<!--      :show-file-list="false"-->
<!--      :headers="headers"-->
<!--      class="upload-file-uploader"-->
<!--      ref="fileUpload"-->
<!--    >-->
      <!-- 上传按钮 -->
      <el-button size="mini" @click="handleAdd" type="primary">选取文件</el-button>
      <!-- 上传提示 -->
<!--      <div class="el-upload__tip" slot="tip" v-if="showTip">-->
<!--        请上传-->
<!--        <template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template>-->
<!--        <template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>-->
<!--        的文件-->
<!--      </div>-->
<!--    </el-upload>-->

    <!-- 文件列表 -->
    <transition-group class="upload-file-list el-upload-list el-upload-list--text" name="el-fade-in-linear" tag="ul">
      <li :key="file.url" class="el-upload-list__item ele-upload-list__item-content" v-for="(file, index) in fileList">
        <template v-if="businessType === 'image'">
          <image-preview :src="`${previewUrl}${file.url}`" :width="100" :height="100"/>
        </template>
        <template v-else>
            <el-link :href="`${previewUrl}${file.url}`" :underline="false" target="_blank">
              <span class="el-icon-document">{{ file.url }}</span>
            </el-link>
        </template>
        <div class="ele-upload-list__item-content-action">
          <el-link :underline="false" @click="handleDelete(file,index)" type="danger">删除</el-link>
        </div>
      </li>
    </transition-group>

    <el-dialog   :visible.sync="selectImageOpen" width="1200px" append-to-body>
      <Pictures  @selectJlProduct="selectJlProduct" viewType="selectpro"   ></Pictures>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancelQuJldialog ">取 消</el-button>
      </div>
    </el-dialog>
    <el-dialog   :visible.sync="selectFileOpen" width="1200px" append-to-body>
      <library  @selectJlProduct="selectJlProduct" viewType="selectpro"   ></library>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancelQuJldialog ">取 消</el-button>
      </div>
    </el-dialog>


  </div>
</template>

<script>
import { getToken } from "@/utils/auth";
import { deleteFile, listfile, saveUpdateFile } from '../api/business/file'
import library from '@/components/Library'
import Pictures from '@/components/Pictures'
export default {
  name: "FileUpload",
  components: {
    library,Pictures
  },
  props: {
    // 值
    value: [String, Object, Array],
    // 数量限制
    limit: {
      type: Number,
      default: 10,
    },
    // 大小限制(MB)
    fileSize: {
      type: Number,
      default: 5,
    },
    tableType: {
      type: String,
      default: '001',
    },
    // 文件类型, 例如['png', 'jpg', 'jpeg']
    fileType: {
      type: Array,
      default: () => ["doc", "xls", "ppt", "txt", "pdf"],
    },
    businessId:{
      type: String,
    },
    businessType:{
      type: String,
    },
    // 是否显示提示
    isShowTip: {
      type: Boolean,
      default: true
    },

  },
  data() {
    return {
      selectImageOpen:false,
      selectFileOpen:false,
      previewUrl: process.env.VUE_APP_API_BASE_URL,
      number: 0,
      uploadList: [],
      baseUrl: process.env.VUE_APP_BASE_API,
      uploadFileUrl: process.env.VUE_APP_BASE_API + "/common/uploadFileFj", // 上传文件服务器地址
      headers: {
        Authorization: "Bearer " + getToken(),
      },
      fileList: [],
      uploadData: {
        businessId: this.businessId,
        businessType: this.businessType,
        tableType: this.tableType
      },
      fjid:""
    };
  },
  watch: {
    value: {
      handler(val) {
        if (val) {
          let temp = 1;
          // 首先将值转为数组
          const list = Array.isArray(val) ? val : this.value.split(',');
          // 然后将数组转为对象数组
          this.fileList = list.map(item => {
            if (typeof item === "string") {
              item = { name: item, url: item };
            }
            item.uid = item.uid || new Date().getTime() + temp++;
            return item;
          });
        } else {
          this.fileList = [];
          return [];
        }
      },
      deep: true,
      immediate: true
    }
  },
  computed: {
    // 是否显示提示
    showTip() {
      return this.isShowTip && (this.fileType || this.fileSize);
    },
  },
  mounted() {
    console.log(this.businessId,"businessId")
    this.viewFiles()
  },
  methods: {
    viewFiles() {
      listfile({ businessId: this.businessId, businessType: this.businessType,tableType: this.tableType }).then(res => {
        if (res.code == 200 && res.data) {
          this.fileList = res.data
        }
      });
    },

    // 上传前校检格式和大小
    handleBeforeUpload(file) {
      // 校检文件类型
      if (this.fileType) {
        const fileName = file.name.split('.');
        const fileExt = fileName[fileName.length - 1];
        const isTypeOk = this.fileType.indexOf(fileExt) >= 0;
        if (!isTypeOk) {
          this.$modal.msgError(`文件格式不正确, 请上传${this.fileType.join("/")}格式文件!`);
          return false;
        }
      }
      // 校检文件大小
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024 < this.fileSize;
        if (!isLt) {
          this.$modal.msgError(`上传文件大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      this.$modal.loading("正在上传文件，请稍候...");
      this.number++;
      return true;
    },
    // 文件个数超出
    handleExceed() {
      this.$modal.msgError(`上传文件数量不能超过 ${this.limit} 个!`);
    },
    // 上传失败
    handleUploadError(err) {
      this.$modal.msgError("上传文件失败，请重试");
      this.$modal.closeLoading();
    },
    // 上传成功回调
    handleUploadSuccess(res, file) {
      if (res.code === 200) {
        this.fjid = res.data.id
        this.$modal.closeLoading();
        this.viewFiles()
        //this.uploadedSuccessfully();
      } else {
        this.number--;
        this.$modal.closeLoading();
        this.$modal.msgError(res.msg);
        this.$refs.fileUpload.handleRemove(file);
        this.uploadedSuccessfully();
      }
    },
    // 删除文件
    handleDelete(file, index) {
      const id = file.id != undefined ? file.id : this.fjid
      this.$modal.confirm('是否确认删除？').then(function() {
        return deleteFile(id)
      }).then(() => {
        this.viewFiles(this.businessId)
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },
    // 上传结束处理
    uploadedSuccessfully() {
      if (this.number > 0 && this.uploadList.length === this.number) {
        this.fileList = this.fileList.concat(this.uploadList);
        this.uploadList = [];
        this.number = 0;
        this.$emit("input", this.listToString(this.fileList));
        this.$modal.closeLoading();
      }
    },
    // 获取文件名称
    getFileName(name) {
      // 如果是url那么取最后的名字 如果不是直接返回
      if (name.lastIndexOf("/") > -1) {
        return name.slice(name.lastIndexOf("/") + 1);
      } else {
        return name;
      }
    },
    // 对象转成指定字符串分隔
    listToString(list, separator) {
      let strs = "";
      separator = separator || ",";
      for (let i in list) {
        strs += list[i].url + separator;
      }
      return strs != '' ? strs.substr(0, strs.length - 1) : '';
    },
    cancelQuJldialog() {
      this.selectImageOpen=false
      this.selectFileOpen= false

    },
    handleAdd(){
      console.log(this.businessType+"handleAdd")
      if(this.businessType =='image'){
        this.selectImageOpen=true
      }else{
        this.selectFileOpen=true
      }


    },
    selectJlProduct(row) {
      this.saveFj(row.s3Url)
    },
    saveFj(url){
      var  param={
        businessType:this.businessType,
        businessId:this.businessId,
        tableType: this.tableType,
        url:url
      }
      saveUpdateFile(param).then(res => {
        this.$modal.msgSuccess("上传成功");
        this.selectImageOpen=false;
        this.selectFileOpen=false;
        this.viewFiles()
      })
    },

  }
};
</script>

<style scoped lang="scss">
.upload-file-uploader {
  margin-bottom: 5px;
}
.upload-file-list .el-upload-list__item {
  border: 1px solid #e4e7ed;
  line-height: 2;
  margin-bottom: 10px;
  position: relative;
}
.upload-file-list .ele-upload-list__item-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: inherit;
}
.ele-upload-list__item-content-action .el-link {
  margin-right: 10px;
}
</style>
